Description
An issue was discovered in Suricata 5.0.0. It was possible to bypass/evade any tcp based signature by faking a closed TCP session using an evil server. After the TCP SYN packet, it is possible to inject a RST ACK and a FIN ACK packet with a bad TCP Timestamp option. The client will ignore the RST ACK and the FIN ACK packets because of the bad TCP Timestamp option. Both linux and windows client are ignoring the injected packets.
Published: 2020-01-06
Score: 7.5 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

No analysis available yet.

Remediation

No remediation available yet.

Tracking

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-2087-1 suricata security update
EUVD EUVD EUVD-2019-8349 An issue was discovered in Suricata 5.0.0. It was possible to bypass/evade any tcp based signature by faking a closed TCP session using an evil server. After the TCP SYN packet, it is possible to inject a RST ACK and a FIN ACK packet with a bad TCP Timestamp option. The client will ignore the RST ACK and the FIN ACK packets because of the bad TCP Timestamp option. Both linux and windows client are ignoring the injected packets.
History

Tue, 22 Oct 2024 17:30:00 +0000

Type Values Removed Values Added
First Time appeared Oisf
Oisf suricata
CPEs cpe:2.3:a:suricata-ids:suricata:5.0.0:-:*:*:*:*:*:* cpe:2.3:a:oisf:suricata:5.0.0:-:*:*:*:*:*:*
Vendors & Products Suricata-ids
Suricata-ids suricata
Oisf
Oisf suricata

Subscriptions

Debian Debian Linux
Linux Linux Kernel
Microsoft Windows
Oisf Suricata
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-05T01:54:14.538Z

Reserved: 2019-10-29T00:00:00.000Z

Link: CVE-2019-18625

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2020-01-06T21:15:11.427

Modified: 2024-11-21T04:33:23.573

Link: CVE-2019-18625

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses